MS40B Black 4" Marine Speakers + NA2-400.2 Amplifier Bundle
Rockville
MS40B Black 4" Marine Speakers + NA2-400.2 Amplifier Bundle
MS40B Black 4" Marine Speakers + NA2-400.2 Amplifier Bundle
4" IP56 Marine Speakers, 200W Pair, 2-Channel 400W Amp, Black Pods, Swivel Clamps
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Features
- IP56 speakers for salt and fresh water
- 200W per pair peak, 50W RMS per pair
- Aluminum swivel pods with black powder coat
- MB Quart 2-channel marine amplifier
- All clamps, inserts, and hardware included
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What's Included in the box
- Pair Rockville MS40B 4" marine speakers (Black)
- Pair Rockville MAC40B 4" aluminum swivel pods
- MB Quart NA2-400.2 2-channel amplifier
- Rubber clamp inserts (3/4"–1.5") and brackets
- Mounting hardware and wiring pigtails
SKU: SKU: MS40B+40KMMTES+NA2-400.2
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Product Description
Features
Weather-Ready Audio
IP56 speakers and marinized aluminum pods resist UV, water, and corrosion for reliable performance on boats, ATVs, and carts.
Clean, Focused Sound
Injection‑molded cones and PEI tweeters deliver crisp highs and balanced mids for clear playback at speed or anchor.
Compact Power
Full‑range Class D 2‑channel amp supplies stable output with low heat, maximizing volume without consuming space.
Flexible Mounting
360° swivel clamps and multiple inserts fit 3/4"–1.5" bars, letting you aim sound precisely and secure a tight, rattle‑free fit.
Durable Build
6061 aluminum pods with black powder coat resist chips and fading, preserving sharp aesthetics season after season.
Technical Specifications
- Product Type 4" marine speaker and amplifier bundle
- Speaker Power (Peak/Pair) 200 W
- Speaker Power (RMS/Pair) 50 W
- Impedance 4 ohm
- Frequency Response 122 Hz–20 kHz
- Sensitivity 85 dB @1W/1m
- Waterproof Rating IP56
- Amplifier Topology Full-range Class D, 2-channel
- Amplifier Power 200 W x2 @2Ω, 100 W x2 @4Ω
- Clamp Fitment 3/4"–1.5" bars, 360° swivel
- Weight Speaker ship wt 1.76 lb (pair); Amp 2.12 lb
- Dimensions Amp 3.70 x 5.51 x 1.77 in; Speaker cutout 3.66 in